Window-sash stop



Feb. 22 1927. 1,618,618

` v. J. WHITNEY.

SSSSSSSSSSSS OP Y Filed oct. 1s. 1924 W Plagas l v vn INvEm'on FIGURE 2 ATTORNEY Patented Feb. 22, 1927.

A Unirse srariatsA i leraars PATENTV OFFICE.

VINCENT J'. WHITNEY, or sAN FRANCISCO, CALIFORNIA. i'

WINDOW-sassi sTor.`

Application filed October 13, l1924. Serial No. 743,356.

- pending application for window support,

tiled Dec. 1, 1922, Serial No. 604,379, in which the sash is both pivotally and slidably mounted in the window frame and .fittedwith ineans for preventing movement' relative t0 the framek unless manualforce is applied thereto. i f

It is also an object to provide a device of ythe character indicated that will be simple in forni and construction, economical to manufacture, and highly etlicient in its prac.- tical application.v

In the drawing:

Figure 1 is a plan'view of a device embodyin g my invention operatively mounted with relation to a sash, a portion of the sashl and window frame being shown in section, and

the sash being in a closed position.

Figure 2 is a view similar to that shown in Figure 1 but with the sash opened a distance. Y

Figure 3 is aside elevation of the device embodying b-y invention iny the position shown in Figure 1.

. Referring more particularly to the drawing, I show at 1 a window stool, at 2 the window frame, and at 3 a portion of a window sash mountedl therein.

rlhe sash 3 is pivotally mounted on a shoe 4 sliding in a track 5 and `rictionally held in anygiven position by a spring 6 inserted bctuf'een shoe 4 and track 5. An arm 7 is pivotally connected to the sash -3 and the Y track 5as shown. Y

At S is shown a bracket .mounted onv the sash 3 and provi dedv with a knob 9, the handle end ot the bracket lying substantially parallel with the sash 3. It is obvious that by `pushing outwardly upon' bracket 8 the `shoe s' 4 will slide in track 5 and the sash 3 canbe ,made to assume any desired position.y

While this construction will hold the sash in any desired position against wind pressure the sash `may, be readily swung clear open at right angles to its normal closed position by anyone on the outside who may thereby gainan entrance to the building through the window. l s

Toremedy this condition provide a hook member 10 pivotally mounted on the stool l asl at 11, and engaging the knob 9. This hook member is elongated as shown, its length being determinedV by the extent to which itis desired to limit the opening of they sash with the pivotal point o1E the hook lo# Vcated in a given position.

Thishook may also be provided with additional recesses as shown at 12,'torming in etliecta'shorter hook byY means of which the opening of the sash may beV further limited il' so desired. l

In the present disclosure the hook 10 is normally held in kengagement with the knobV 9 by means of a spring 13 mounted to bear against its rear edge'as shown so that it cannot become accidentally disengaged from the knob 9 even when the sash is entirely closed, and it is obviously impossible to disengage the knoband hook whenthe sash is opened a distance. However, by pressing the hookbackwardly against the spring when the sash is closed the knob may become disengaged therefrom and the sash opened to any extent.

The hook 10 swings in a plane parallel with the stool 1 and bracket 8 and' is so Jformed and positioned that no portion eX- tends beyond the edge of stool l so that it does not disiigure the stool or interfere with curtains. A

While it is desirable to protect the' invention broadly itis particularly desired to protect the combination of the sash mounting shown, (the vpivotally and slidably lmounted sash) with the sash bracket and pivoted hook. In this combination the bracket end lies substantially parallel with sash 3 so that when sash 3 is opened a distance and its pivotcdfendl slides along track 5 knob 9 ytravels on a flatter arc than would be the case if the sash were pivoted on hinges in the usual manner. This being the case the pull on hook 1() varies little from a. straight line passing through point 11 parallel to the normal closed position of4 the sash.V Consequently the said point 11 may be located adjacent the casing 14 and Well out of sight. through the kWindow without permitting the hookl() to contact with the edge 15 of said casing.

It may now be seen that IY have provided in, an

a `deviee that `will. permit `opening of m the Sash for ventilation and yet etl'eetively prevent anyone from etl'eeting an entranee through the window opening.

It 1s to be understood, of course, that While I have herein shown and described one specific embodiment of my invention, changes in form, proportions and method of o eration may be made Within the scope of tie appended claims.

l. The combination with a window trame, a sash ivotally and elidably mounted therein, an an operating bracket mounted on said sash, of means mounted on said trame and engaging Said bracket and limiting the movement thereof. m m

2. The combination with a Window frame, a sash pivotally and slidably mounted therein, and friction means for maintaiijiing said sash in any given position in said frame, et an operating bracket mounted on said sash, and `means mounted on said trame and engaging said bracket and limiting the morement thereof.

3. The combination with a Window frame, a sash ivotally and slidablymounted therean operatmg bracket mounted on said sash `and extending :inwardly and thence laterally a distance Substantially parallel with the plane of the Window, oi a hook pivotally mounted `onsaid frame and engaging said bracket and allowing a limsited movement thereof.

said sash, of a stop mounted on the window iframe and engaging said `bracket `and permitting a limited movement thereof.

(i. The Combination with a Window :trame and a saeli movably mounted therein, olE an operating bracket! mounted uponeaid sash, a stop mounted upon said trame to engage said bracket, andineans for normally urging Said stop into engagement with Said stop engaging means.

VINCENT J. Wi-irruar. 

